... Excessive heat warning remains in effect until 10 PM MDT this evening... * affected area... Utah's Dixie including St George and Zion National Park. * Timing... after a warm overnight period, high temperatures today will range from 105 to 110. * Impacts... dehydration and heat cramps may impact those who do not take precautions. Prolonged exposure to these hot temperatures can result in heat exhaustion and/or heat stroke. Avoid strenuous outdoor activities during the heat of the day. Never leave children or pets in the car alone, for any amount of time! Precautionary/preparedness actions... An excessive heat warning means that a prolonged period of dangerously hot temperatures will occur. The hot temperatures will create a dangerous situation in which heat illnesses are likely. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency - call 911.
Fire Weather Warning
Issued: 3:52 AM MDT Jul. 8, 2017 – National Weather Service
... Red flag warning remains in effect until 10 PM MDT Sunday for dry thunderstorms and gusty outflow winds for fire weather zones 478... 479... 482... 483... 484... 489... 492... 493... 494... 495... 496... 497 and 498... * affected area... fire weather zone 478 Salt Lake desert... fire weather zone 479 Wasatch mountains... fire weather zone 482 western Uintah basin... fire weather zone 483 southern Ashley National Forest... fire weather zone 484 tavaputs plateau... fire weather zone 489 San Rafael Swell... fire weather zone 492 central Utah west desert... fire weather zone 493 central Utah mountains... fire weather zone 494 Henry Mountains... fire weather zone 495 color Country West desert... fire weather zone 496 color country mountains... fire weather zone 497 Mojave Desert and fire weather zone 498 Grand Staircase. * Thunderstorms... isolated to scattered dry thunderstorms will continue across much of the area through Sunday. * Outflow winds... winds near high-based showers and dry thunderstorms will be gusty and erratic at typical speeds of 30 to 45 mph. * Impacts... the threat of dry lightning, gusty microburst winds and a Haines near 6 may be conducive to the start and rapid growth of new fires. It will remain near record temperatures with single digit rh in the valleys through tomorrow before rising to between 10 and 15 percent Sunday. Precautionary/preparedness actions... A red flag warning means that critical fire weather conditions are either occurring now... or are imminent. A combination of lightning... dry fuel conditions... and gusty microburst winds will create favorable conditions for new fire starts and extreme fire behavior.